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UNITED STATES PATENT OFFICE.

\VILLIAM W. NEUER, OF VVILKES-BARRE, PENNSYLVANIA.

PREVENTlNG DISCOLORATION OF BURNED BRICK.

SPECIFICATION forming part of Letters Patent No. 340,609, dated April 27, 1886.

Application filed February 5, 1886. Serial No. 190,947. (No specimens.)

To all whom, it may concern:

Be it known that I, WILLIAM W. NEUER, a citizen of the United States, residing at Wilkes- Barr, in the county of Luzerne and State of Pennsylvania, have invented a new and useful Composition of Matter to be used for Preventing Discoloration of Burned Brick and Terra-Gotta and for Preserving the Brick and Terra-Gotta, of which the following is a specification.

My composition consists of the following ingredients, combined in the proportions stated, viz:

First. Vegetable oil,ien gallons; petroleumoil, ten gallons, this mixture to be applied to the surface of brick or terracotta as a first coating, (or applicationfi Second. Melted beeswax, one gallon; turpentine, one gallon; vegetable oil, eighteen gallons, these ingredients to be thoroughly mixed and applied to the brick or terracotta as a second application (or coating.)

Previous to applying the ingredients above described the bricks, terra-cotta, or other ma terials are first cleaned by using diluted nitric acid, (one part of the acid to four parts of wa' ter,) and such application should be made with a stiff brush. The acid is then washed off with clean water and the bricks or other material thoroughly dried. After this drying has been properly completed the compound of vegetable oil and petroleum is applied with a bristle brush, as much being used as the brick or material will thoroughly absorb, and the composition is then allowed to thoroughly dry. The second composition-beeswax, vegetable oil, and turpentineis then applied with a brush and allowed to properly dry. Thus the pores of the bricks'or other material are thoroughly filled up, and the surface is completely protected against contact with moisture or other discoloring or injurious substances.

What I claim, and desire to secure by Letters Patent of the United States, is

1. Thehereindescribed composition ofmat- I ter to be used for preventing the discoloration and preserving brick, &c., and terracotta, consisting'of vegetable oil,pet-roleum-oil, beeswax, and turpentine.

2. The method of preventing discoloration of bricks, &c., the same consistingin first ap plying petroleum and vegetable oil to fill up the pores and interstices of the material and subsequently applying beeswax, vegetable oil, and turpentine to protect the surface of the material, substantially as described.

3. The method of preventing discoloration of bricks, &c., the same consistingiu first applying to the bricks or other material a cleansing compound of nitric acid and water, then applyiuga composition ofpetroleum and vegetable oil to fill the pores of the material, and finally applying a composition of beeswax, vegetable oil, and turpentine to protect the surface of the material, substantially as set forth.

\VILLIAM \V. NEUER.

In presence of- STANLEY W. WALKER, CHAS. A. ZIEGLER. 

